<!DOCTYPE html>
<html lang="en">
    <head>
        <meta charset="UTF-8">
        <title>九九乘法表</title>
    </head>
    <body>
        <script>
           for (var i = 1;i<=9;i++){
            for (var j = 1;j<=i;j++){
                document.write(i+'*'+j+'='+(i*j)+'&nbsp  ');
                    }
            document.write('<br>');//换行
            }

        </script>
    </body>
</html>